|Durango Mountain was the site of the first World Mountain Bike Championship and things have just gotten better since. There are loads of additional trails down in Durango, but these are the favorite mountain mountain bike trails of the mountaion locals. All of them are at high altitude, between 9,000 and 13,000 feet above sea level. Always wear a helmet and gloves. Carry water. Be prepared for foul weather. Biking supplies and rentals are available in the summer at Cliffside Sports (970) 385-1461, located at Needle`s Country Square. These rides are listed in order of difficulty.